A fresh war of words has erupted between Washington and Tehran after Iranian lawmaker Ebrahim Rezaei warned that any attack on Iran's energy infrastructure would send the entire region "back to the Stone Age." The warning came amid reports of possible U.S.-Israeli strike plans and followed Donald Trump's latest threat to hit Iran "very hard." Rezaei claimed the idea of a quick knockout blow was a dangerous illusion and urged the U.S. president not to “act foolishly.”